<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- 课程详情 开始 -->

    <section class="container">
      <!-- 课程所属分类 开始 -->
      <section class="path-wrap txtOf hLh30">
        <a href="#" title class="c-999 fsize14">首页</a>
        \
        <a href="/course" title class="c-999 fsize14">课程列表</a>
        \
        <span class="c-333 fsize14">{{ course.subjectLevelOne }}</span>
        \
        <span class="c-333 fsize14">{{ course.subjectLevelTwo }}</span>
      </section>
      <!-- /课程所属分类 结束 -->

      <!-- 课程基本信息 开始 -->
      <div>
        <article class="c-v-pic-wrap" style="height: 357px;">
          <section id="videoPlay" class="p-h-video-box">
            <img :src="course.cover" :alt="course.title" class="dis c-v-pic" />
          </section>
        </article>
        <aside class="c-attr-wrap">
          <section class="ml20 mr15">
            <h2 class="hLh30 txtOf mt15">
              <span class="c-fff fsize24">{{ course.title }}</span>
            </h2>
            <section class="c-attr-jg">
              <span class="c-fff">价格：</span>
              <b class="c-yellow" style="font-size:24px;"
                >￥{{ course.price }}</b
              >
            </section>
            <section class="c-attr-mt c-attr-undis">
              <span class="c-fff fsize14"
                >主讲： {{ course.teacherName }}&nbsp;&nbsp;&nbsp;</span
              >
            </section>
            <section class="c-attr-mt of">
              <span class="ml10 vam">
                <em class="icon18 scIcon" />
                <a class="c-fff vam" title="收藏" href="#">收藏</a>
              </span>
            </section>
            <!-- <section class="c-attr-mt">
              <a
                @click="createOrders()"
                href="#"
                title="立即购买"
                class="comm-btn c-btn-3"
                >立即购买</a
              >
            </section> -->

            <section
              v-if="isBuy || Number(course.price) === 0"
              class="c-attr-mt"
            >
              <a href="#" title="立即观看" class="comm-btn c-btn-3">立即观看</a>
            </section>
            <section v-else class="c-attr-mt">
              <a
                href="#"
                title="立即购买"
                class="comm-btn c-btn-3"
                @click="createOrders()"
                >立即购买</a
              >
            </section>

            <!-- 支付功能完善 -->
          </section>
        </aside>
        <aside class="thr-attr-box">
          <ol class="thr-attr-ol">
            <!-- <ol class="thr-attr-ol clearfix"> -->
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">购买数</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.buyCount }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">课时数</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.lessonNum }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">浏览数</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.viewCount }}</h6>
              </aside>
            </li>
          </ol>
        </aside>

        <div class="clear" />
      </div>
      <!-- /课程基本信息 结束 -->

      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab-title">
                  <a name="c-i" class="current" title="课程详情">课程详情</a>
                </section>
              </div>

              <article class="ml10 mr10 pt20">
                <!-- 课程详情介绍 开始 -->
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <!-- 将内容中的html翻译过来 -->
                      <p v-html="course.description">
                        {{ course.description }}
                      </p>
                    </section>
                  </div>
                </div>
                <!-- /课程详情介绍 结束 -->
                <!-- 课程大纲 开始-->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span>课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <menu id="lh-menu" class="lh-menu mt10 mr10">
                        <ul>
                          <!-- 文件目录 -->
                          <li
                            class="lh-menu-stair"
                            v-for="chapter in chapterVideoList"
                            :key="chapter.id"
                          >
                            <a
                              href="javascript: void(0)"
                              :title="chapter.title"
                              class="current-1"
                            >
                              <em class="lh-menu-i-1 icon18 mr10"></em
                              >{{ chapter.title }}
                            </a>

                            <ol class="lh-menu-ol" style="display: block;">
                              <li
                                class="lh-menu-second ml30"
                                v-for="video in chapter.children"
                                :key="video.id"
                              >
                                <a
                                  :href="'/player/' + video.videoSourceId"
                                  target="_blank"
                                >
                                  <span class="fr">
                                    <i class="free-icon vam mr10">免费试听</i>
                                  </span>
                                  <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em
                                  >{{ video.title }}
                                </a>
                              </li>
                            </ol>
                          </li>
                        </ul>
                      </menu>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
                <!-- /课程大纲 结束 -->
              </article>
            </div>
          </section>
        </article>

        <aside class="fl col-3">
          <div class="i-box">
            <!-- 主讲讲师 开始-->
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="javascript:void(0)">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto;">
                  <li>
                    <div class="u-face">
                      <a :href="'/teacher/' + course.teacherId" target="_blank">
                        <img :src="course.avatar" width="50" height="50" alt />
                      </a>
                    </div>
                    <section class="hLh30 txtOf">
                      <a
                        :href="'/teacher/' + course.teacherId"
                        class="c-333 fsize16 fl"
                        target="_blank"
                        >{{ course.teacherName }}</a
                      >
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{ course.intro }}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
            <!-- /主讲讲师 结束 -->
          </div>
        </aside>

        <div class="clear" />
      </div>
    </section>

    <!-- /课程详情 结束 -->
    <div class="mt50 commentHtml">
      <div>
        <h6 class="c-c-content c-infor-title" id="i-art-comment">
          <span class="commentTitle">课程评论</span>
        </h6>
        <section class="lh-bj-list pr mt20 replyhtml">
          <ul>
            <li class="unBr">
              <aside class="noter-pic">
                <img
                  width="50"
                  height="50"
                  class="picImg"
                  src="~/assets/img/avatar-boy.gif"
                />
              </aside>
              <div class="of">
                <section class="n-reply-wrap">
                  <fieldset>
                    <textarea
                      name=""
                      v-model="comment.content"
                      placeholder="输入您要评论的文字"
                      id="commentContent"
                    ></textarea>
                  </fieldset>
                  <p class="of mt5 tar pl10 pr10">
                    <span class="fl "
                      ><tt
                        class="c-red commentContentmeg"
                        style="display: none;"
                      ></tt
                    ></span>
                    <input
                      type="button"
                      @click="addComment()"
                      value="回复"
                      class="lh-reply-btn"
                    />
                  </p>
                </section>
              </div>
            </li>
          </ul>
        </section>
        <section class="">
          <section class="question-list lh-bj-list pr">
            <ul class="pr10">
              <li v-for="(comment, index) in data.items" v-bind:key="index">
                <aside class="noter-pic">
                  <img
                    width="50"
                    height="50"
                    class="picImg"
                    :src="comment.avatar"
                  />
                </aside>
                <div class="of">
                  <span class="fl">
                    <font class="fsize12 c-blue"> {{ comment.nickname }}</font>
                    <font class="fsize12 c-999 ml5">评论：</font></span
                  >
                </div>
                <div class="noter-txt mt5">
                  <p>{{ comment.content }}</p>
                </div>
                <div class="of mt5">
                  <span class="fr"
                    ><font class="fsize12 c-999 ml5">{{
                      comment.gmtCreate
                    }}</font></span
                  >
                </div>
              </li>
            </ul>
          </section>
        </section>

        <!-- 公共分页 开始 -->
        <div class="paging">
          <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
          <a
            :class="{ undisable: !data.hasPrevious }"
            href="#"
            title="首页"
            @click.prevent="gotoPage(1)"
            >首</a
          >
          <a
            :class="{ undisable: !data.hasPrevious }"
            href="#"
            title="前一页"
            @click.prevent="gotoPage(data.current - 1)"
            >&lt;</a
          >
          <a
            v-for="page in data.pages"
            :key="page"
            :class="{
              current: data.current == page,
              undisable: data.current == page
            }"
            :title="'第' + page + '页'"
            href="#"
            @click.prevent="gotoPage(page)"
            >{{ page }}</a
          >
          <a
            :class="{ undisable: !data.hasNext }"
            href="#"
            title="后一页"
            @click.prevent="gotoPage(data.current + 1)"
            >&gt;</a
          >
          <a
            :class="{ undisable: !data.hasNext }"
            href="#"
            title="末页"
            @click.prevent="gotoPage(data.pages)"
            >末</a
          >
          <div class="clear" />
        </div>
        <!-- 公共分页 结束 -->
      </div>
    </div>
  </div>
</template>
<script>
import course from "@/api/course";
import comment from "@/api/comment";
import orders from "@/api/order";
export default {
  data() {
    return {
      data: {},
      page: 1,
      limit: 4,
      total: 10,
      comment: {
        content: "",
        courseId: ""
      },
      course: {},
      chapterVideoList: [],
      isbuyCourse: false,
      isBuy: false
    };
  },

  created() {
    this.initCourseInfo();
    this.comment.courseId = this.courseId;
    this.initComment();
  },
  mounted() {
    // initComment()
    console.log(this.course);
    console.log(this.courseId);
  },
  methods: {
    //根据课程id，调用接口方法生成订单
    createOrders() {
      orders.createOrder(this.courseId).then(response => {
        //获取返回的订单号
        //生成订单，跳转到显示页面
        this.$router.push({ path: "/orders/" + response.data.data.orderId });
      });
    },
    // 课程详情的方法
    initCourseInfo() {
      course.getCoureInfo(this.courseId).then(response => {
        (this.course = response.data.data.course),
          (this.chapterVideoList = response.data.data.chapterVoList),
          // this.courseId=params.id
          (this.isBuy = response.data.data.isBuy);
        console.log("*******************" + this.isBuy);
      });
    },

    initComment() {
      comment
        .getPageList(this.page, this.limit, this.courseId)
        .then(response => {
          this.data = response.data.data;
        });
    },

    addComment() {
      this.comment.courseId = this.courseId;

      this.comment.teacherId = this.course.teacherId;

      comment.addComment(this.comment).then(response => {
        if (response.data.success) {
          this.comment.content = "";

          this.initComment();
        }
      });
    },

    gotoPage(page) {
      comment.getPageList(page, this.limit, this.courseId).then(response => {
        this.data = response.data.data;
      });
    }
  },
  // 异步调用的方法
  //和页面异步开始的

  asyncData({ params, error }) {
    return { courseId: params.id };
  }
  // asyncData({ params, error }) {
  //   return course.getCoureInfo(params.id).then(response => {
  //     console.log(response);

  //     return {
  //       course: response.data.data.course,
  //       courseId: params.id,

  //       chapterVideoList: response.data.data.chapterVoList
  //     };
  //   });
  // }
};
</script>
